MLA

Another Slice of Plumb-Puding for Councellor Wollop [Graphic]. Publish'd April 20, 1774, by I. Sledge, Henrietta Street, Covent Garden, 0AD. https://collections.library.yale.edu/catalog/10716287.

APA, 6th edition

Another slice of plumb-puding for Councellor Wollop [graphic]. (0 C.E.). [Satires (Visual works) England 1774, Mezzotints England London 1774]. Publish'd April 20, 1774, by I. Sledge, Henrietta Street, Covent Garden. https://collections.library.yale.edu/catalog/10716287.